163711640674 has 8 divisors (see below), whose sum is σ = 245968062300. Its totient is φ = 81722286576.

The previous prime is 163711640663. The next prime is 163711640713. The reversal of 163711640674 is 476046117361.

163711640674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138797228025 + 24914412649 = 372555^2 + 157843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66765349 + ... + 66767800.

Almost surely, 2^163711640674 is an apocalyptic number.

163711640674 is a deficient number, since it is larger than the sum of its proper divisors (82256421626).

163711640674 is a wasteful number, since it uses less digits than its factorization.

163711640674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133533764.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 163711640674 in words is "one hundred sixty-three billion, seven hundred eleven million, six hundred forty thousand, six hundred seventy-four".